Error ORA-01426: numeric overflow when Creating table with double data type

Question

Hi,
I am using ODP.NET to create a table with data from SQL to Oracle. The problem is with double data type fields that is equivalent to FLOAT(49) in Oracle. My syntax is:
CREATE TABLE SCOTT.ALLTYPES
F1 NUMBER(10),
F10 DATE,
F2 NUMBER(10),
F3 NUMBER(5),
F4 NUMBER(3),
F5 FLOAT(23),
F6 FLOAT(49),
F7 NUMBER (38,5),
F8 NVARCHAR2(500),
F9 NVARCHAR2(500)
Th error is with field F6 but I am not sure what is the correct type equivalent to double in SQL.
I woul appreciate if anyone can help me with this problem.
Sunny

Answer 1

Does this simple test work for you?
In database:
create table float_test
  f1 float(49)
);C# code:
using System;
using System.Data;
using System.Text;
using Oracle.DataAccess.Client;
using Oracle.DataAccess.Types;
namespace FloatTest
  /// <summary>
  /// Summary description for Class1.
  /// </summary>
  class Class1
    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main(string[] args)
      // connect to local db using o/s authenticated account
      OracleConnection con = new OracleConnection("User Id=/");
      con.Open();
      // will hold the value to insert
      StringBuilder sbValue = new StringBuilder();
      // create a string of 49 number 9's
      for (int i = 0; i < 49; i++)
        sbValue.Append("9");
      // command object to perform the insert
      OracleCommand cmd = con.CreateCommand();
      cmd.CommandText = "insert into float_test values (:1)";
      // bind variable for the value to be inserted
      OracleParameter p_value = new OracleParameter();
      p_value.OracleDbType = OracleDbType.Double;
      p_value.Value = Convert.ToDouble(sbValue.ToString());
      // add parameter to collection
      cmd.Parameters.Add(p_value);
      // execute the insert operation
      cmd.ExecuteNonQuery();
      // clean up
      p_value.Dispose();
      cmd.Dispose();
      con.Dispose();
}SQL*Plus after executing above code:
SQL> select * from float_test;
        F1
1.0000E+49
1 row selected.- Mark